As mentioned, B. braunii are cosmopolitan organisms that live in a large range of conditions. They are mainly found in temperate freshwater with very low nutrient content. They can be found mainly in a strong biofilm matrix of only other B. braunii microbes. B. braunii is a major interest in the fuel production industry, because 40-75% of its dry mass is made up of hydrocarbons that are produced in large amounts. These hydrocarbons resemble petroleum at a 90% efficiency rate, and provide raw materials that can be converted into fuel for vehicles like cars and jets